While it is ready for operation right out of the box, the SK 300 G3 easily receives settings from the receiver via its enhanced wireless sync function. This transmitter also sets itself apart from others due to its unparalleled mute options. If you want to quickly and easily interrupt the sound signal at some point: you can simply attach the optional external mute button to the additional 2.5 mm jack socket. This mute option is easily programmed to provide a variety of mute options.